title: Ecology of congruence: past meets present.
mesh_terms: D000818:Animals; D001717:Birds / Q000235:genetics* / Q000469:parasitology; D017753:Ecosystem; D006790:Host-Parasite Interactions; D009068:Movement; D008003:Phthiraptera / Q000235:genetics*; D010802:Phylogeny; D012377:Rodentia / Q000235:genetics / Q000469:parasitology; D013559:Symbiosis